ZA937305B - Process for coating inorganic particles - Google Patents

Process for coating inorganic particles

Info

Publication number
ZA937305B
ZA937305B ZA937305A ZA937305A ZA937305B ZA 937305 B ZA937305 B ZA 937305B ZA 937305 A ZA937305 A ZA 937305A ZA 937305 A ZA937305 A ZA 937305A ZA 937305 B ZA937305 B ZA 937305B
Authority
ZA
South Africa
Prior art keywords
inorganic particles
amorphous silica
dense amorphous
coating
suspension
Prior art date
Application number
ZA937305A
Inventor
Alison Lesley Metcalf
Martin Alec Williamson
Original Assignee
Tioxide Group Services Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tioxide Group Services Ltd filed Critical Tioxide Group Services Ltd
Publication of ZA937305B publication Critical patent/ZA937305B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/06—Treatment with inorganic compounds
    • C09C3/063—Coating
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3607—Titanium dioxide
    • C09C1/3653—Treatment with inorganic compounds
    • C09C1/3661—Coating
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3692—Combinations of treatments provided for in groups C09C1/3615 - C09C1/3684
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/12—Treatment with organosilicon compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/60—Compounds characterised by their crystallite size
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
    • C01P2004/82—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
    • C01P2004/82—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases
    • C01P2004/84—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases one phase coated with the other
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C01P2006/62—L* (lightness axis)
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C01P2006/63—Optical properties, e.g. expressed in CIELAB-values a* (red-green axis)
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C01P2006/64—Optical properties, e.g. expressed in CIELAB-values b* (yellow-blue axis)
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Paints Or Removers (AREA)
  • Glass Compositions (AREA)
  • Dental Preparations (AREA)
  • Liquid Crystal (AREA)

Abstract

A process for coating inorganic particles with dense amorphous silica is provided in which a suspension of inorganic particles is coated by adding an acid to a solution of a silicate, preferably an alkali metal silicate. During at least a part of the addition the suspension is subjected to the effects of ultrasonic vibrations. Coatings of dense amorphous silica which are substantially continuous and impervious can be produced using the new method at temperatures of about 60 DEG C and in an acceptable time whereas previously known economical methods for producing a coating of dense amorphous silica generally employed temperatures of approximately 90 DEG C. The process is particularly useful for producing titanium dioxide pigments having very high durability.
ZA937305A 1992-10-24 1993-10-01 Process for coating inorganic particles ZA937305B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB929222434A GB9222434D0 (en) 1992-10-24 1992-10-24 Process for coating inorganic particles

Publications (1)

Publication Number Publication Date
ZA937305B true ZA937305B (en) 1994-04-22

Family

ID=10724044

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA937305A ZA937305B (en) 1992-10-24 1993-10-01 Process for coating inorganic particles

Country Status (14)

Country Link
EP (1) EP0595471B1 (en)
JP (1) JPH06192593A (en)
CN (1) CN1047611C (en)
AT (1) ATE138965T1 (en)
AU (1) AU665674B2 (en)
CA (1) CA2107193A1 (en)
DE (1) DE69302988T2 (en)
DK (1) DK0595471T3 (en)
ES (1) ES2088235T3 (en)
FI (1) FI934686A (en)
GB (2) GB9222434D0 (en)
MY (1) MY109141A (en)
NO (1) NO933781L (en)
ZA (1) ZA937305B (en)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3526676B2 (en) * 1995-10-25 2004-05-17 横浜ゴム株式会社 Manufacturing method of surface-treated carbon black for rubber reinforcement
JPH09272815A (en) * 1996-04-02 1997-10-21 Merck Japan Kk Composite metal oxide fine particle and production of the same
GB9616978D0 (en) * 1996-08-13 1996-09-25 Tioxide Specialties Ltd Zinc oxide dispersions
US5741356A (en) * 1996-12-20 1998-04-21 Bayer Corporation Process for surface-treated organic pigments
JP3397228B2 (en) * 1997-03-06 2003-04-14 戸田工業株式会社 Pigment particle powder, method for producing the same, and water-based paint using the pigment particle powder
MY117802A (en) * 1997-06-13 2004-08-30 Mizusawa Industrial Chem Amorphous silica particles having a double structure, process for producing the same and use
DE19751857A1 (en) * 1997-11-22 1999-05-27 Kronos Titan Gmbh Inorganic particles for use in plastics, paints, etc.,
US6534044B1 (en) 1999-01-11 2003-03-18 Showa Denko K.K Cosmetic preparation, surface-hydrophobized silica-coated metal oxide particles, sol of silica-coated metal oxide, and processes for producing these
AU750973B2 (en) * 1999-01-11 2002-08-01 Showa Denko Kabushiki Kaisha Cosmetic material, surface-hydrophobicized silica-coated metal oxide particles, silica-coated metal oxide sol and process for their preparation
AU5532801A (en) * 2000-04-12 2001-10-30 Millennium Inorganic Chem Methods for producing titanium dioxide having improved gloss at low temperatures
US6695906B2 (en) 2000-04-12 2004-02-24 Millennium Inorganic Chemicals, Inc. Continuous processes for producing titanium dioxide pigments
US6656261B2 (en) 2001-03-09 2003-12-02 Millennium Inorganic Chemicals, Inc. Titanium dioxide pigments with improved gloss and/or durability
JP4111701B2 (en) * 2001-10-01 2008-07-02 触媒化成工業株式会社 Modified titanium oxide particles
US7413841B2 (en) 2003-01-17 2008-08-19 Matsushita Electric Industrial Co., Ltd. Toner, process for producing the same, two-component developing agent and method of image formation
DE10333029A1 (en) * 2003-07-21 2005-02-17 Merck Patent Gmbh Nanoparticulate UV protectants used in cosmetic, sunscreen, dermatological or other protective uses (e.g. as textile or packaging coatings) comprise a metal oxide with a silicon dioxide coating
JPWO2005050328A1 (en) 2003-11-20 2007-12-06 松下電器産業株式会社 Toner and two-component developer
WO2006001330A1 (en) * 2004-06-24 2006-01-05 Ishihara Sangyo Kaisha, Ltd Titanium dioxide pigments, process for the production thereof, and resin compositions containing the pigments
ATE442422T1 (en) 2004-09-15 2009-09-15 Air Prod & Chem SILICATE COATING
JP4668705B2 (en) * 2005-07-04 2011-04-13 石原産業株式会社 Method for producing titanium dioxide pigment
DE102005057384A1 (en) * 2005-11-30 2007-05-31 Nanogate Ag Electrolytically deposited metal layer for coating engine parts comprises embedded particles having a silicon dioxide coating
NL1031706C2 (en) * 2006-04-27 2007-10-30 Next Generation B V Luminescent pigment, treated with amorphous inorganic substance, silicic acid or solid organic substance to make it hydrophobic
JP2008069193A (en) * 2006-09-12 2008-03-27 Tayca Corp Particulate titanium dioxide composition and method for producing the same
DE102006059849A1 (en) * 2006-12-15 2008-06-19 Kronos International, Inc. Process for the surface treatment of solid particles, in particular titanium dioxide pigment particles
US8951607B2 (en) 2007-05-03 2015-02-10 Tronox, Llc Making co-precipitated mixed oxide-treated titanium dioxide pigments
CN100545218C (en) * 2007-12-03 2009-09-30 南京大学 The method of enwrapping ferric oxide by silicon dioxide
US9221995B2 (en) 2008-05-07 2015-12-29 Tioxide Europe Limited Titanium dioxide
GB0808239D0 (en) 2008-05-07 2008-06-11 Tioxide Group Services Ltd Compositions
US8759421B2 (en) 2010-08-31 2014-06-24 Samsung Electronics Co., Ltd. Continuous process for preparing nanodispersions using an ultrasonic flow-through heat exchanger
JP2014534314A (en) * 2011-10-28 2014-12-18 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニーＥ．Ｉ．Ｄｕ Ｐｏｎｔ Ｄｅ Ｎｅｍｏｕｒｓ Ａｎｄ Ｃｏｍｐａｎｙ Treated inorganic pigments with improved dispersibility and their use in coating compositions
CN102516825B (en) * 2011-11-17 2014-12-24 攀钢集团研究院有限公司 Continuous inorganic coating method of titanium dioxide
JP5855480B2 (en) * 2012-02-02 2016-02-09 大王製紙株式会社 Method for producing composite particles
US9353266B2 (en) * 2013-03-15 2016-05-31 Tronox Llc Process for manufacturing titanium dioxide pigments using ultrasonication
US10087365B2 (en) 2013-10-30 2018-10-02 Baker Hughes, A Ge Company, Llc Proppants with improved strength
GB201409209D0 (en) * 2014-05-23 2014-07-09 Tioxide Europe Ltd Titanium dioxide
CN108025914B (en) 2015-10-05 2021-11-16 M技术株式会社 Metal oxide particles and method for producing same
EP3199595A1 (en) * 2016-01-27 2017-08-02 Kronos International, Inc. Production of titanium dioxide pigment using the sulfate process with narrow particle size distribution
JPWO2017134910A1 (en) 2016-02-02 2018-11-22 エム・テクニック株式会社 Zinc oxide particles with controlled color characteristics, production method thereof, and coating composition containing the zinc oxide particles
CN108002433A (en) * 2017-11-30 2018-05-08 宁波激智科技股份有限公司 A kind of modified titanium and preparation method thereof and a kind of diffusion barrier
US11155751B2 (en) 2019-01-22 2021-10-26 Baker Hughes Holdings Llc Method of treating subterranean formations with composites having enhanced strength
US11180691B2 (en) 2019-01-22 2021-11-23 Baker Hughes Holdings Llc Use of composites having coating of reaction product of silicates and polyacrylic acid

Family Cites Families (4)

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GB2108098B (en) * 1981-10-30 1985-03-20 Tioxide Group Plc Improved pigments and their preparation
GB8908995D0 (en) * 1989-04-20 1989-06-07 Tioxide Group Plc Particulate material
GB2242420A (en) * 1990-03-26 1991-10-02 Tioxide Group Plc Silica coated titanium dioxide
GB9105980D0 (en) * 1991-03-21 1991-05-08 Tioxide Group Services Ltd Method for preparing pigments

Also Published As

Publication number Publication date
AU4867493A (en) 1994-05-05
GB2271765A (en) 1994-04-27
FI934686A0 (en) 1993-10-22
FI934686A (en) 1994-04-25
EP0595471A3 (en) 1994-11-09
ES2088235T3 (en) 1996-08-01
AU665674B2 (en) 1996-01-11
CA2107193A1 (en) 1994-04-25
DE69302988T2 (en) 1996-10-10
EP0595471A2 (en) 1994-05-04
GB9222434D0 (en) 1992-12-09
GB9320002D0 (en) 1993-11-17
NO933781L (en) 1994-04-25
DK0595471T3 (en) 1996-07-01
JPH06192593A (en) 1994-07-12
NO933781D0 (en) 1993-10-21
ATE138965T1 (en) 1996-06-15
CN1047611C (en) 1999-12-22
MY109141A (en) 1996-12-31
CN1086232A (en) 1994-05-04
GB2271765B (en) 1995-07-12
DE69302988D1 (en) 1996-07-11
EP0595471B1 (en) 1996-06-05

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